Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878543 | Method for controlling an attachment to agricultural tractors | — | 1989-11-07 |
| 4835966 | Control switching arrangement for a hydraulic power lift | Heinz Schulte | 1989-06-06 |